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<TITLE>JavaScript Source Code 3000:  Forms:  Limit Textarea</TITLE>
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<META NAME="date" CONTENT="2000-09-09">
<META NAME="channel" CONTENT="Web Developer">
<META NAME="author" CONTENT="Ronnie T. Moore">
<META NAME="section" CONTENT="Forms">
<META NAME="description" CONTENT="This script controls a maximum textarea input amount and updates a small counter with how many characters are left with each keystroke.  Dynamic fix now allows you to use this script in multiple textboxes on a page.  Easy!">

<SCRIPT LANGUAGE="JavaScript">
<!-- Original:  Ronnie T. Moore -->
<!-- Web Site:  JavaScript Source Code 3000 -->

<!-- Dynamic 'fix' by: Nannette Thacker -->
<!-- Web Site: http://www.shiningstar.net -->




<!-- Begin
function textCounter(field, countfield, maxlimit) {
if (field.value.length > maxlimit) // if too long...trim it!
field.value = field.value.substring(0, maxlimit);
// otherwise, update 'characters left' counter
else 
countfield.value = maxlimit - field.value.length;
}
// End -->
</script>
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<FONT COLOR="#006666"><b>Limit Textarea</b></font></font>
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<!-- Description --><!--content_start-->
This script controls a maximum textarea input amount and updates a small counter with how many characters are left with each keystroke.  Dynamic fix now allows you to use this script in multiple textboxes on a page.  Easy!
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<!-- Demonstration -->
<center>
<form name=myform action="http://javascript.internet.com/forms/YOUR-SCRIPT.CGI">
<font size="1" face="arial, helvetica, sans-serif"> ( You may enter up to 125 characters. )<br>
<textarea name=message wrap=physical cols=28 rows=4 onKeyDown="textCounter(this.form.message,this.form.remLen,125);" onKeyUp="textCounter(this.form.message,this.form.remLen,125);"></textarea>
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<input readonly type=text name=remLen size=3 maxlength=3 value="125"> characters left</font>
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<tr><td BGCOLOR=yellow><font FACE="helvetica,arial,geneva"><b>JavaScript Source Code 3000:  Forms:  Limit Textarea</b>
<p>Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Apple-s).  The script is yours!!!
<br><br></font></td></tr>
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<form NAME="copy">

<DIV align="center">
<input type=button value="Highlight All" onClick="javascript:this.form.txt.focus();this.form.txt.select();">&nbsp;&nbsp;&nbsp;&nbsp;
<INPUT TYPE="text" NAME="total" VALUE="Script Size:  1.37 KB" size=24>
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<textarea NAME="txt" ROWS=20 COLS=75 WRAP=VIRTUAL>

&lt;!-- TWO STEPS TO INSTALL LIMIT TEXTAREA:

  1.  Copy the coding into the HEAD of your HTML document
  2.  Add the last code into the BODY of your HTML document  --&gt;

&lt;!-- STEP ONE: Paste this code into the HEAD of your HTML document  --&gt;

&lt;HEAD&gt;

&lt;SCRIPT LANGUAGE="JavaScript"&gt;
&lt;!-- Original:  Ronnie T. Moore --&gt;
&lt;!-- Web Site:  JavaScript Source Code 3000 --&gt;

&lt;!-- Dynamic 'fix' by: Nannette Thacker --&gt;
&lt;!-- Web Site: http://www.shiningstar.net --&gt;

&lt;! &gt;
&lt;! &gt;

&lt;!-- Begin
function textCounter(field, countfield, maxlimit) {
if (field.value.length &gt; maxlimit) // if too long...trim it!
field.value = field.value.substring(0, maxlimit);
// otherwise, update 'characters left' counter
else 
countfield.value = maxlimit - field.value.length;
}
// End --&gt;
&lt;/script&gt;
&lt;/HEAD&gt;

&lt;!-- STEP TWO: Copy this code into the BODY of your HTML document  --&gt;

&lt;BODY&gt;

&lt;!-- textCounter() parameters are:  text field, the count field, max length --&gt;

&lt;center&gt;
&lt;form name=myform action="YOUR-SCRIPT.CGI"&gt;
&lt;font size="1" face="arial, helvetica, sans-serif"&gt; ( You may enter up to 125 characters. )&lt;br&gt;
&lt;textarea name=message wrap=physical cols=28 rows=4 onKeyDown="textCounter(this.form.message,this.form.remLen,125);" onKeyUp="textCounter(this.form.message,this.form.remLen,125);"&gt;&lt;/textarea&gt;
&lt;br&gt;
&lt;input readonly type=text name=remLen size=3 maxlength=3 value="125"&gt; characters left&lt;/font&gt;
&lt;/form&gt;
&lt;/center&gt;

&lt;p&gt;&lt;center&gt;
&lt;font face="arial, helvetica" SIZE="-2"&gt;Free JavaScripts provided&lt;br&gt;
by &lt;a href="http://javascriptsource.com"&gt;JavaScript Source Code 3000&lt;/a&gt;&lt;/font&gt;
&lt;/center&gt;&lt;p&gt;

&lt;!-- Script Size:  1.37 KB --&gt;</textarea><br><font FACE="helvetica,arial,geneva"></font></td></tr>

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